An international crew of three started a two-day journey to the International Space Station, safely launching into orbit atop a Soyuz FG rocket on Wednesday. Aboard Soyuz TMA-18M, veteran Commander Sergei Volkov and rookie space fliers Andreas Mogensen and Aidyn Aimbetov blasted off at 4:37 UTC from Site 1/5 at the Baikonur Cosmodrome.